Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!bcyclone02.am1.xlned.com!bcyclone02.am1.xlned.com!newsfeed.xs4all.nl!newsfeed8.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.039 X-Spam-Evidence: '*H*': 0.92; '*S*': 0.00; 'ast': 0.09; 'python': 0.10; 'stack': 0.13; 'importing': 0.15; 'subject:when': 0.16; 'wrote:': 0.16; 'basically': 0.18; 'try:': 0.18; 'solution.': 0.18; 'insert': 0.23; 'import': 0.24; 'header:In-Reply-To:1': 0.24; 'all.': 0.24; 'sort': 0.25; 'header:User-Agent:1': 0.26; 'chris': 0.26; 'correct': 0.28; 'function': 0.28; 'idea': 0.28; 'possibly': 0.32; 'received:10.0': 0.34; 'something': 0.35; 'step': 0.36; 'should': 0.36; '(and': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:10': 0.37; 'sure': 0.39; 'well.': 0.40; 'to:addr:python.org': 0.40; 'received:de': 0.40; 'some': 0.40; 'back': 0.62; 'charset:windows-1252': 0.62; 'due': 0.65; 'sounds': 0.76; 'topic,': 0.79 Date: Thu, 13 Aug 2015 08:28:01 +0200 From: "Sven R. Kunze" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Hooking Mechanism when Entering and Leaving a Try Block References: <55CA6D7F.1060705@mail.de> <55CB6EAC.5040004@mail.de> <55CB9425.5050109@mail.de> In-Reply-To: <55CB9425.5050109@mail.de> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-purgate: clean X-purgate: This mail is considered clean (visit http://www.eleven.de for further information) X-purgate-type: clean X-purgate-Ad: Categorized by eleven eXpurgate (R) http://www.eleven.de X-purgate: This mail is considered clean (visit http://www.eleven.de for further information) X-purgate: clean X-purgate-size: 732 X-purgate-ID: 154282::1439447283-000007B2-7B043067/0/0 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 18 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1439447284 news.xs4all.nl 2902 [2001:888:2000:d::a6]:46148 X-Complaints-To: abuse@xs4all.nl X-Received-Bytes: 3653 X-Received-Body-CRC: 31027476 Xref: csiph.com comp.lang.python:95335 On 12.08.2015 20:44, Sven R. Kunze wrote: > On 12.08.2015 18:11, Chris Angelico wrote: >> Sounds to me like you want some sort of AST transform, possibly in an >> import hook. Check out something like MacroPy for an idea of how >> powerful this sort of thing can be. > > Sounds like I MacroPy would enable me to basically insert a function > call before and after each try: block at import time. Is that correct > so far? That sounds not so bad at all. > > > However, if that only works due to importing it is not a solution. I > need to make sure I catch all try: blocks, the current stack is in > (and is about to step into). > > Ah yes, and it should work with Python 3 as well. Back to topic, please. :)